Finding the Fourth Proportional to 160,404.75, 221,416.97 and 93,336.75
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Solution
The fourth proportional to 160,404.75, 221,416.97 and 93,336.75 is: 128,838.70
Step by Step Solution
- Step 1: Write the proportion equation
160,404.75 : 221,416.97 = 93,336.75 : x - Step 2: Convert to fraction form
160,404.75/221,416.97 = 93,336.75/x - Step 3: Cross multiply
160,404.75x = 221,416.97 × 93,336.75 - Step 4: Simplify right side
160,404.75x = 20,666,339,907.96 - Step 5: Solve for x
x = 20,666,339,907.96/160,404.75 - Step 6: Final answer
x = 128,838.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.